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2026-04-29 - 05:54
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rack6slot0.osadl.org (updated Wed Apr 29, 2026 01:01:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
641099212204,5cyclictest10224-21sshd22:03:4738
641099212204,5cyclictest10224-21sshd22:03:4738
641099212204,5cyclictest10224-21sshd22:03:4738
642199205198,5cyclictest0-21swapper/1822:13:0010
642199205198,5cyclictest0-21swapper/1822:13:0010
644299204168,33cyclictest4407-21CPU30
644299204168,33cyclictest4407-21CPU30
644299204168,33cyclictest4407-21CPU30
641099202193,8cyclictest0-21swapper/823:10:3238
641099202193,8cyclictest0-21swapper/823:10:3238
640199199191,5cyclictest0-21swapper/120:35:141
640199199191,5cyclictest0-21swapper/120:35:141
643099197185,10cyclictest0-21swapper/2622:38:5119
643099197185,10cyclictest0-21swapper/2622:38:5119
641099195187,6cyclictest0-21swapper/822:18:2838
641099195187,6cyclictest0-21swapper/822:18:2838
641099194187,5cyclictest0-21swapper/820:49:4138
641099194187,5cyclictest0-21swapper/820:49:4138
641099194187,3cyclictest3545-21CPU38
641099194187,3cyclictest3545-21CPU38
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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